UZUPEŁNIJ 1. 3a + ....a = 7a 2. 2b + ....b=3b 3. 4x + 13x=....x 4.12d-...d=-2d 5. 5a+....a-2b+....b=a+b 6. 6x+...x +2y-7y=10x-...y

1. 3a + 4a = 7a 2. 2b + b=3b 3. 4x + 13x=17x 4.12d-10d=-2d 5. 5a+(-4a)-2b+3b=a+b 6. 6x+4x +2y-7y=10x-5y

1. 3a+4a=7a 2.2b+1b=3b 3.4x+13x=17x 4.12d-14d=-2d

1. 3a + 4a = 7a 2. 2b + 1b = 3b 3. 4x + 13x = 17x 4. 12d - 14d = -2d 5. 5a + (-4a) - 2b + 3b = a + b 6. 6x + 4x + 2y - 7y = 10x - 5y